Automotive acoustic damping component and production method and application thereof

An automobile and damping technology, applied in vehicle parts, chemical instruments and methods, transportation and packaging, etc., can solve the problems of indoor air pollution in automobiles, easy sleepiness of drivers and occupants, and air quality pollution in vehicles, so as to reduce traffic accidents. , The ability to fill the cavity is strong, the effect of low density

Active Publication Date: 2014-03-26
PAN ASIAN MICROVENT TECH JIANGSU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In March 2013, the CCTV quality report program exposed that the three major luxury car brands used asphalt dampers, which caused serious air pollution in the car
The damping sheets of these vehicles all contain No. 70 asphalt components, and the price of the damping sheets containing asphalt components is about one-third of that of resin and rubber; On the one hand, there are no relevant national standards on auto parts and auxiliary materials in my country. On the other hand, the use of asphalt can reduce the production cost of enterprises; The phenomenon of the damping plate
[0004] Automobile parts use No. 70 asphalt component damping sheet bonded felt as sound insulation and damping material. Because the sound insulation effect is not obvious, and it causes odor pollution in the car indoor air; therefore, external noise, mechanical vibration noise, and tire friction can be clearly felt in the cab. The noise and the wind-cut sound caused by the friction between the sound of the car and the air make the driver and passengers in the car prone to sleepiness and affect their health. The odor and noise pollution in the car interior lead to frequent traffic accidents

Method used

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  • Automotive acoustic damping component and production method and application thereof

Examples

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Effect test

Embodiment 1

[0031] A sound-absorbing, damping and shock-absorbing component of an automobile, comprising: an isolation and anti-adhesive layer 1, an adhesive damping layer 2, a flame-retardant sound-absorbing cotton layer 3 and a microporous sound-absorbing film coating layer 4, and its preparation method specifically includes the following steps:

[0032] The selected flame-retardant and sound-absorbing cotton is blanked, and the shape of the flame-retardant and sound-absorbing cotton is die-cut according to the shape of the auto parts, and the die-cut flame-retardant and sound-absorbing cotton layer 3 is covered with a microporous sound-absorbing film, and then the microporous sound-absorbing film layer 4 is ultrasonically Die-cut parts are welded and hot-pressed at a temperature of 180°C~330°C. The die-cut parts are punched, the die-cut parts are honed, and the bonding surface of the die-cut parts and auto parts is coated with an adhesive damping layer 2, and finally compounded and isola...

Embodiment 2

[0034] A sound-absorbing, damping and shock-absorbing component of an automobile, comprising: an isolation and anti-adhesive layer 1, an adhesive damping layer 2, a flame-retardant sound-absorbing cotton layer 3 and a microporous sound-absorbing film coating layer 4, and its preparation method specifically includes the following steps:

[0035] The selected flame-retardant and sound-absorbing cotton is blanked, and the shape of the flame-retardant and sound-absorbing cotton is die-cut according to the shape of the automobile parts, and the die-cut flame-retardant and sound-absorbing cotton layer 3 is covered with a microporous sound-absorbing film, and then the microporous sound-absorbing film layer 4 is heated Die-cut parts are made of heat-pressed edge banding at a temperature of 180 ° C ~ 330 ° C. Die-cut parts are punched, die-cut parts are honed, and adhesive damping layer 2 is applied to the joint surface of die-cut parts and auto parts. Adhesive layer 1, inspection, pack...

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PUM

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Abstract

The invention discloses an automotive acoustic damping component and a production method and application thereof. The automotive acoustic damping component comprises an isolation anti-sticking layer, a glue damping layer, a flame-retardant acoustic cotton layer, and a porous acoustic film covering layer. The production method includes: selecting flame-retardant acoustic cotton, feeding, die-cutting the flame-retardant acoustic cotton in shape according to the shape of an automobile part, covering the die-cut flame-retardant acoustic cotton layer with porous acoustic film, hot-pressing and sealing the porous acoustic film layer into a die-cut part, punching and quilting the die-cut part, coating joint faces of the die-cut part and the automobile part with glue, and finally combining with the isolation anti-sticking layer. The automotive acoustic damping component applied to automobile bodies, automobile trunks and automobile engine covers has the advantages that when an automobile runs, vibration energy can be absorbed and running noise of the automobile can also be absorbed; the automobile is more comfortable for passengers, driving noise fatigue is reduced, traffic accidents are decreased, and automobile interior air odor pollution is never caused.

Description

technical field [0001] The invention relates to the field of sound-absorbing, damping and vibration-damping components, in particular to a sound-absorbing, damping and vibration-damping component of an automobile, a preparation method and application thereof. Background technique [0002] Most of the car noise is introduced by the vibration of the car sound. All cars are equipped with damping sheets. The damping sheet is a viscoelastic material attached to the inner surface of the car body. It is close to the steel plate wall of the car body. It plays the role of reducing noise and vibration, that is to say, it plays a damping role. In countries with developed automobile industries such as Europe and the United States, polymer resin materials or rubber materials are generally used as raw materials for automobile damping sheets, supplemented by partially modified special high-damping materials, and mixed with appropriate amount of fillers, softeners, anti-aging agents, etc. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R13/08B32B27/06
Inventor 张云丁荣华昌建忠
Owner PAN ASIAN MICROVENT TECH JIANGSU CORP
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